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Groups > linux.kernel > #1246507

[PATCH v1 0/2] Fix display on second resume on 5250-snow

From Tomeu Vizoso <tomeu.vizoso@collabora.com>
Newsgroups linux.kernel
Subject [PATCH v1 0/2] Fix display on second resume on 5250-snow
Date 2015-10-14 12:50 +0200
Message-ID <qjrN8-4ow-7@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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Hi,

as discussed in [0], currently on the second resume from memory the
display is broken on Snow boards (ARM Samsung Series 3 Chromebook).

The reason is that on resume the contents of register SRC_TOP3 aren't
what the kernel thinks they are because the HW (or FW) is doing some
clock reparenting beneath our feet.

This series tasks the kernel to do the reparenting itself so that the HW
state always matches the kernel's internal state.

Thanks,

Tomeu

[0] http://lkml.kernel.org/g/561CDC33.7050103@collabora.com


Tomeu Vizoso (2):
  clk: samsung: exynos5250: Add DISP1 clocks
  ARM: dts: exynos5250: Add clocks to DISP1 domain

 arch/arm/boot/dts/exynos5250.dtsi      |  4 ++++
 drivers/clk/samsung/clk-exynos5250.c   | 16 +++++++++++++++-
 include/dt-bindings/clock/exynos5250.h |  4 +++-
 3 files changed, 22 insertions(+), 2 deletions(-)

-- 
2.5.0

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[PATCH v1 0/2] Fix display on second resume on 5250-snow Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-10-14 12:50 +0200
  [PATCH v1 1/2] clk: samsung: exynos5250: Add DISP1 clocks Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-10-14 12:50 +0200
    Re: [PATCH v1 1/2] clk: samsung: exynos5250: Add DISP1 clocks Stephen Boyd <sboyd@codeaurora.org> - 2015-10-14 20:40 +0200
    Re: [PATCH v1 1/2] clk: samsung: exynos5250: Add DISP1 clocks Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-10-15 03:40 +0200

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